Abstract
This paper presents an experimental investigation on the crack width induced by the corrosion of reinforcing steel bars in concrete. Reinforcing steel bars with different diameters were corroded using an accelerated test in three types of concrete members, including 24 beams with corroded stirrup and 20 beams with corroded longitudinal reinforcing steel bars. The corrosion patterns and rusts characteristics of the corroded steel bars were examined and compared with those observed in real RC structures. According to the experimental result, the corrosioninduced crack width were analyzed and showed a linear relationship with the corrosion loss of reinforcing steel bar. Finally, an analytical prediction model of crack width was established after considering concrete cover depth and corrosion penetration depth.
Keywords
structural concrete, crack width, corrosion, reinforcing steel bar, multienvironments
Date of Version
July 2014
DOI
10.5703/1288284315395
Recommended Citation
Xia, Jin and Jin, Wei-Liang, "Prediction of Corrosion-Induced Crack Width of Corroded Reinforced Concrete Structures" (2014). International Conference on Durability of Concrete Structures. 10.
https://docs.lib.purdue.edu/icdcs/2014/corrosion/10
Included in
Prediction of Corrosion-Induced Crack Width of Corroded Reinforced Concrete Structures
This paper presents an experimental investigation on the crack width induced by the corrosion of reinforcing steel bars in concrete. Reinforcing steel bars with different diameters were corroded using an accelerated test in three types of concrete members, including 24 beams with corroded stirrup and 20 beams with corroded longitudinal reinforcing steel bars. The corrosion patterns and rusts characteristics of the corroded steel bars were examined and compared with those observed in real RC structures. According to the experimental result, the corrosioninduced crack width were analyzed and showed a linear relationship with the corrosion loss of reinforcing steel bar. Finally, an analytical prediction model of crack width was established after considering concrete cover depth and corrosion penetration depth.
